Improvement in apparatus for the manufacture of gas



(92" EDWARD Io NES. i improvement in Apparatusffor the ManufactureofGas.`

Patented Dec.19,1871.

PATENT OFFICE.

EDWARD JONES, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN APPARATUS FOR THE MANUFACTURE QF GAS.

Specification forming part of Letters Patent No. 122,025, dated December19, 1871.

To all whom it may concern:

Be it known that I, EDWARD J oNEs, of Boston, in the county of Suffolkand State of Massachusetts, have invented certain nevir and usefulImprovements on Stand-Pipes and Mouth- Pieces for Gas Apparatus, ofwhich the following is a specification:

The nature of my invention relates to ilnprovements on stand-pipes andmouth-pieces for gas apparatus, consisting in the employment of a box orreceptacle containing water, surrounding the stand-pipes or mouth-pieceleading from the retorts at any suitable place. Said box may be cast on,attached or connected to the stand-pipe or mouth-piece, as may beconvenient, and is to be provided with one or more openings, throughwhich the water can evaporate up in the standpipe or mouth-piece, andthus dissolve and prevent the accumulations of coal-tar for the purposeof effecting aclear and unobstructed passage for the gas through thestandpipe and mouthpiece, as will now be fully shown and described.

On the drawing, Figure l represents a front elevation of my invention.Fig. 2 represents a central longitudinal section over the line A B takenon Fig. l; and Fig. 3 represents a crosssection over the line C D, alsotaken on Fig. l.

Similar letters refer to similar parts wherever they occur on thedrawing.

The object of this my invention is to remove the accumulation ofcoal-tar in the stand-pipes and mouth-pieces of gas apparatus, for whichpurpose I surround the stand-pipes or mouth-pieces on 011e or more sideswith a receptacle containing water, and provide the said receptacle withone or more openings, leading in the stand-pipe or mouth-piece, throughwhich the water can evaporate and rise with the gas up through themouthpiece and stand-pipe, and thus dissolve, soften, and combine withthe coal-tar, making it so thin that it will iiow easily back to theretort-s and thus keep the stand-pipes and mouth-pieces clear fromobstructions and allowing the gas from the retorts to be conductedfreely to the hydraulic main.

On the drawing, a is the gas-retort mouthpiece, and b is the lid. c isthe stand-pipe, the lower end of which rests in a socket attached to theupper side of the mouth-piece a, as shown. At a convenient place on thestand-pipe o l cast on, attach, or connect a receptacle, d, that maysurround the stand-pipe wholly or in part, as may be desired. The upperend of the receptable d is provided with one or more openings, e e e, onthe circumference of the stand-pipe c, through which openings the steamfrom the receptacle d will be evaporated and rise upward through thestand-pipe, thus dissolving the coal-tar accumulations in thestand-pipe. The receptacle d is provided with a pipe, f, stop-cock g,and funnel It, by which arrangement I can iill the receptacle d from theoutside. The receptacle d may either be attached to the regularstand-pipe, as shown in Fig. 1, or it may be attached to a short piece,c, provided inits upper end with a suitable socket or similararrangement, whereby it may be connected to the ordinary stand-pipe, asshown in Fig. 2. The advantage of thelatter arrangement is that oldgas-works can easily be provided with my improvement simply by cuttingoff the or dinary stand-pipes a little and to connect them with theshort pipe, c, and the receptacle d attached thereto, as shown.

The operation of my invention is as follows: When the lid b is removedduring the charging oi' the retort, I open the cock g and fill thereceptacle d with water by pouring it through the funnel h, and whenfull I close the cock g andreplace the lid b as usual, when the heatfrom the retort will gradually evaporate the water contained in thereceptacle d, that rises up through the stand-pipe, and thus eitect thedesired object, viz., softening and preventing the coal-tar fromaccumulating and clogging up the stand-pipe and mouth-piece. Instead ofplacing the receptacle d on the stand-pipe Imay also put it around themouth-piece a, as shown in dotted lines 'i onthe figures. In this case Ican either let my receptacle run all around the mouth-piece, or let iteX- tend only on a part of said mouth-piece, as may be desired.

Having thus described fully the nature, construction, and operation ofmy invention, I wish to secure by Letters Patent and claim- Areceptacle, d, cast onto, attached, or connected to a stand-pipe ormouth-piece for gas apparatus, provided with one or'more openings, c ee, said receptacle el surrounding the stand-pipe or mouth-piece whollyor inpart, for the purpose as herein fully set forth and described.

EDWARD JONES.

Witnesses:

WM. H. HUTCHINsoN, ALBAN ANDRN. (66)

